XLSX to ODS converter
Convert XLSX files to ODS with encrypted uploads and automatic deletion. OpenDocument spreadsheet format.
Drop a XLSX file, or click to browse
Converts to ODS · runs live, right now
How it works
Drop your file
Drag a XLSX file in, or click to browse. No account needed to try it.
We convert it
Encrypted upload, converted to ODS in our sheet pipeline.
Download the result
Grab your ODS file immediately, or find it later in your dashboard.
Why convert XLSX to ODS?
Both XLSX and ODS use lossless compression, so the conversion mainly changes compatibility, not quality. The main reason to convert XLSX to ODS is compatibility: ODS opens cleanly in Excel, Google Sheets and most spreadsheet tools, while XLSX doesn't always. If you're sharing a file with someone else, sending it to a tool that expects a specific format, or archiving it for the long term, ODS is usually the safer target.
Format comparison
| XLSX | ODS | |
|---|---|---|
| Extension | .xlsx | .ods |
| MIME type | application/vnd.openxmlformats-officedocument.spreadsheetml.sheet | application/vnd.oasis.opendocument.spreadsheet |
| Compression | lossless compression | lossless compression |
| Category | spreadsheet | spreadsheet |
Your file, handled carefully
Uploads are encrypted in transit and at rest, processed in an isolated job, and deleted on the schedule you choose — as fast as immediately. We don't index, search, or share files between accounts. Read the full security model →
Frequently asked questions
Is converting XLSX to ODS free?
Yes — the first 50 conversions every month are free on any plan, including XLSX to ODS.
Will I lose quality converting XLSX to ODS?
ODS is opendocument spreadsheet format. We use the highest-quality encoder settings by default so visual or data loss is minimized.
Do you keep a copy of my file?
No, not by default. You choose a retention window at upload — immediate, 1 hour, 24 hours or 7 days — and the file is permanently deleted after that.
What is XLSX?
Microsoft Excel's XML-based spreadsheet format.
What happens if a conversion fails?
You get a clear error message and the job is marked failed in your history — we never silently drop a file. Retry is one click, and nothing is charged against your quota for a failed job.